Pomona CA, US: 34.0667, -117.7506
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 22, 2019, 11 p.m. | 19.4 ppb (18) | 6.7 ppb (6) | N/A | 13.0 ppb (12) | N/A | N/A | 31.0 ppb (24) | 0.37 ppb (4) | N/A | N/A | 24.0 | |
| March 22, 2019, 3 p.m. | 38.3 ppb (35) | 13.1 ppb (12) | N/A | 25.0 ppb (23) | N/A | N/A | 15.0 ppb (12) | 0.46 ppb (5) | N/A | N/A | 35.0 | |
| March 22, 2019, 2 p.m. | 46.9 ppb (43) | 20.8 ppb (19) | N/A | 26.0 ppb (24) | N/A | N/A | 5.0 ppb (4) | 0.65 ppb (7) | N/A | N/A | 43.0 | |
| March 22, 2019, 1 p.m. | 35.4 ppb (33) | 9.2 ppb (9) | N/A | 26.0 ppb (24) | N/A | N/A | 3.0 ppb (2) | 0.59 ppb (7) | N/A | N/A | 33.0 | |
| March 22, 2019, noon | 20.3 ppb (19) | 1.0 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 9.0 ppb (7) | 0.38 ppb (4) | N/A | N/A | 19.0 | |
| March 22, 2019, 11 a.m. | 14.9 ppb (14) | 0.2 ppb (0) | N/A | 15.0 ppb (14) | N/A | N/A | 19.0 ppb (15) | 0.28 ppb (3) | N/A | N/A | 15.0 | |
| March 22, 2019, 10 a.m. | 10.5 ppb (10) | 0.0 ppb (0) | N/A | 11.0 ppb (10) | N/A | N/A | 23.0 ppb (18) | 0.27 ppb (3) | N/A | N/A | 18.0 | |
| March 22, 2019, 9 a.m. | 10.5 ppb (10) | -0.4 ppb (0) | N/A | 11.0 ppb (10) | N/A | N/A | 25.0 ppb (19) | 0.23 ppb (3) | N/A | N/A | 19.0 | |
| March 22, 2019, 8 a.m. | 9.4 ppb (9) | -0.3 ppb (0) | N/A | 10.0 ppb (9) | N/A | N/A | 26.0 ppb (20) | 0.24 ppb (3) | N/A | N/A | 20.0 | |
| March 22, 2019, 7 a.m. | 11.4 ppb (11) | 0.0 ppb (0) | N/A | 11.0 ppb (10) | N/A | N/A | 26.0 ppb (20) | 0.26 ppb (3) | N/A | N/A | 20.0 | |
| March 22, 2019, 6 a.m. | 10.5 ppb (10) | -0.2 ppb (0) | N/A | 11.0 ppb (10) | N/A | N/A | 27.0 ppb (21) | 0.25 ppb (3) | N/A | N/A | 21.0 | |
| March 22, 2019, 5 a.m. | 11.9 ppb (11) | 0.0 ppb (0) | N/A | 12.0 ppb (11) | N/A | N/A | 26.0 ppb (20) | 0.26 ppb (3) | N/A | N/A | 20.0 | |
| March 22, 2019, 4 a.m. | 13.3 ppb (12) | 0.4 ppb (0) | N/A | 13.0 ppb (12) | N/A | N/A | 26.0 ppb (20) | 0.27 ppb (3) | N/A | N/A | 20.0 | |
| March 22, 2019, 3 a.m. | 14.2 ppb (13) | 0.8 ppb (1) | N/A | 13.0 ppb (12) | N/A | N/A | 26.0 ppb (20) | 0.27 ppb (3) | N/A | N/A | 20.0 | |
| March 22, 2019, 2 a.m. | 13.5 ppb (12) | 0.8 ppb (1) | N/A | 13.0 ppb (12) | N/A | N/A | 27.0 ppb (21) | 0.27 ppb (3) | N/A | N/A | 21.0 | |
| March 22, 2019, 1 a.m. | 10.9 ppb (10) | 0.7 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | 32.0 ppb (25) | 0.25 ppb (3) | N/A | N/A | 25.0 | |
| March 22, 2019, midnight | 11.7 ppb (11) | 1.7 ppb (2) | N/A | 10.0 ppb (9) | N/A | N/A | 35.0 ppb (27) | 0.24 ppb (3) | N/A | N/A | 27.0 | |
| March 21, 2019, 11 p.m. | 10.5 ppb (10) | 1.5 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 35.0 ppb (27) | 0.23 ppb (3) | N/A | N/A | 27.0 | |
| March 21, 2019, 10 p.m. | 10.1 ppb (9) | 1.6 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 36.0 ppb (28) | 0.25 ppb (3) | N/A | N/A | 28.0 | |
| March 21, 2019, 9 p.m. | 9.8 ppb (9) | 1.9 ppb (2) | N/A | 8.0 ppb (7) | N/A | N/A | 36.0 ppb (28) | 0.23 ppb (3) | N/A | N/A | 28.0 | |
| March 21, 2019, 8 p.m. | 10.5 ppb (10) | 2.2 ppb (2) | N/A | 8.0 ppb (7) | N/A | N/A | 34.0 ppb (26) | 0.24 ppb (3) | N/A | N/A | 26.0 | |
| March 21, 2019, 7 p.m. | 12.3 ppb (11) | 3.0 ppb (3) | N/A | 9.0 ppb (8) | N/A | N/A | 33.0 ppb (25) | 0.27 ppb (3) | N/A | N/A | 25.0 | |
| March 21, 2019, 6 p.m. | 13.6 ppb (13) | 2.8 ppb (3) | N/A | 11.0 ppb (10) | N/A | N/A | 31.0 ppb (24) | 0.25 ppb (3) | N/A | N/A | 24.0 | |
| March 21, 2019, 5 p.m. | 11.7 ppb (11) | 2.1 ppb (2) | N/A | 10.0 ppb (9) | N/A | N/A | 30.0 ppb (23) | 0.25 ppb (3) | N/A | N/A | 23.0 | |
| March 21, 2019, 4 p.m. | 12.5 ppb (12) | 1.6 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | 29.0 ppb (22) | 0.24 ppb (3) | N/A | N/A | 22.0 | |
| March 21, 2019, 3 p.m. | 20.9 ppb (19) | 3.9 ppb (4) | N/A | 17.0 ppb (16) | N/A | N/A | 24.0 ppb (18) | 0.33 ppb (4) | N/A | N/A | 19.0 | |
| March 21, 2019, 2 p.m. | 83.9 ppb (82) | 43.8 ppb (41) | N/A | 40.0 ppb (37) | N/A | N/A | 16.0 ppb (12) | 0.5 ppb (6) | N/A | N/A | 82.0 | |
| March 21, 2019, 1 p.m. | 35.6 ppb (33) | 10.6 ppb (10) | N/A | 25.0 ppb (23) | N/A | N/A | 21.0 ppb (16) | 0.29 ppb (3) | N/A | N/A | 33.0 | |
| March 21, 2019, noon | 9.1 ppb (8) | 0.2 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 26.0 ppb (20) | 0.23 ppb (3) | N/A | N/A | 20.0 | |
| March 21, 2019, 11 a.m. | 10.3 ppb (10) | -0.1 ppb (0) | N/A | 10.0 ppb (9) | N/A | N/A | 25.0 ppb (19) | 0.22 ppb (2) | N/A | N/A | 19.0 | |
| March 21, 2019, 10 a.m. | 9.4 ppb (9) | -0.1 ppb (0) | N/A | 10.0 ppb (9) | N/A | N/A | 23.0 ppb (18) | 0.25 ppb (3) | N/A | N/A | 18.0 | |
| March 21, 2019, 9 a.m. | 9.3 ppb (9) | -0.2 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 24.0 ppb (18) | 0.24 ppb (3) | N/A | N/A | 18.0 | |
| March 21, 2019, 8 a.m. | 10.2 ppb (9) | -0.1 ppb (0) | N/A | 10.0 ppb (9) | N/A | N/A | 22.0 ppb (17) | 0.26 ppb (3) | N/A | N/A | 17.0 | |
| March 21, 2019, 7 a.m. | 9.7 ppb (9) | -0.2 ppb (0) | N/A | 10.0 ppb (9) | N/A | N/A | 27.0 ppb (21) | 0.24 ppb (3) | N/A | N/A | 21.0 | |
| March 21, 2019, 6 a.m. | 18.1 ppb (17) | 1.2 ppb (1) | N/A | 17.0 ppb (16) | N/A | N/A | 20.0 ppb (15) | 0.31 ppb (3) | N/A | N/A | 17.0 | |
| March 21, 2019, 5 a.m. | 22.6 ppb (21) | 1.7 ppb (2) | N/A | 21.0 ppb (19) | N/A | N/A | 14.0 ppb (11) | 0.39 ppb (4) | N/A | N/A | 21.0 | |
| March 21, 2019, 4 a.m. | 22.6 ppb (21) | 0.3 ppb (0) | N/A | 22.0 ppb (20) | N/A | N/A | 14.0 ppb (11) | 0.36 ppb (4) | N/A | N/A | 21.0 | |
| March 21, 2019, 3 a.m. | 33.3 ppb (31) | 3.5 ppb (3) | N/A | 30.0 ppb (28) | N/A | N/A | 12.0 ppb (9) | 0.45 ppb (5) | N/A | N/A | 31.0 | |
| March 21, 2019, 2 a.m. | 18.7 ppb (17) | 2.0 ppb (2) | N/A | 17.0 ppb (16) | N/A | N/A | 25.0 ppb (19) | 0.34 ppb (4) | N/A | N/A | 19.0 | |
| March 21, 2019, 1 a.m. | 11.3 ppb (10) | 0.9 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | 34.0 ppb (26) | 0.25 ppb (3) | N/A | N/A | 26.0 | |
| March 21, 2019, midnight | 12.8 ppb (12) | 1.8 ppb (2) | N/A | 11.0 ppb (10) | N/A | N/A | 33.0 ppb (25) | 0.26 ppb (3) | N/A | N/A | 25.0 | |
| March 20, 2019, 11 p.m. | 9.0 ppb (8) | 1.0 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | 35.0 ppb (27) | 0.23 ppb (3) | N/A | N/A | 27.0 | |
| March 20, 2019, 10 p.m. | 13.0 ppb (12) | 1.9 ppb (2) | N/A | 11.0 ppb (10) | N/A | N/A | 33.0 ppb (25) | 0.25 ppb (3) | N/A | N/A | 25.0 | |
| March 20, 2019, 9 p.m. | 15.7 ppb (15) | 2.2 ppb (2) | N/A | 13.0 ppb (12) | N/A | N/A | 30.0 ppb (23) | 0.25 ppb (3) | N/A | N/A | 23.0 | |
| March 20, 2019, 8 p.m. | 13.8 ppb (13) | 1.3 ppb (1) | N/A | 13.0 ppb (12) | N/A | N/A | 31.0 ppb (24) | 0.25 ppb (3) | N/A | N/A | 24.0 | |
| March 20, 2019, 7 p.m. | 13.4 ppb (12) | 1.4 ppb (1) | N/A | 12.0 ppb (11) | N/A | N/A | 32.0 ppb (25) | 0.23 ppb (3) | N/A | N/A | 25.0 | |
| March 20, 2019, 6 p.m. | 11.8 ppb (11) | 2.3 ppb (2) | N/A | 10.0 ppb (9) | N/A | N/A | 36.0 ppb (28) | 0.22 ppb (2) | N/A | N/A | 28.0 | |
| March 20, 2019, 5 p.m. | 15.5 ppb (14) | 4.1 ppb (4) | N/A | 11.0 ppb (10) | N/A | N/A | 31.0 ppb (24) | 0.27 ppb (3) | N/A | N/A | 24.0 | |
| March 20, 2019, 4 p.m. | 19.2 ppb (18) | 4.0 ppb (4) | N/A | 15.0 ppb (14) | N/A | N/A | 26.0 ppb (20) | 0.28 ppb (3) | N/A | N/A | 20.0 | |
| March 20, 2019, 3 p.m. | 12.5 ppb (12) | 1.5 ppb (1) | N/A | 11.0 ppb (10) | N/A | N/A | 29.0 ppb (22) | 0.25 ppb (3) | N/A | N/A | 22.0 | |
| March 20, 2019, 2 p.m. | 23.1 ppb (21) | 2.4 ppb (2) | N/A | 21.0 ppb (19) | N/A | N/A | 19.0 ppb (15) | 0.33 ppb (4) | N/A | N/A | 21.0 | |
| March 20, 2019, 1 p.m. | 17.4 ppb (16) | 0.6 ppb (1) | N/A | 17.0 ppb (16) | N/A | N/A | 21.0 ppb (16) | 0.28 ppb (3) | N/A | N/A | 16.0 | |
| March 20, 2019, noon | 18.9 ppb (18) | 0.9 ppb (1) | N/A | 18.0 ppb (17) | N/A | N/A | 20.0 ppb (15) | 0.29 ppb (3) | N/A | N/A | 18.0 | |
| March 20, 2019, 11 a.m. | 12.6 ppb (12) | 0.1 ppb (0) | N/A | 13.0 ppb (12) | N/A | N/A | 22.0 ppb (17) | 0.22 ppb (2) | N/A | N/A | 17.0 | |
| March 20, 2019, 10 a.m. | 8.4 ppb (8) | -0.6 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 27.0 ppb (21) | 0.2 ppb (2) | N/A | N/A | 21.0 | |
| March 20, 2019, 9 a.m. | 8.5 ppb (8) | -0.5 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 31.0 ppb (24) | 0.18 ppb (2) | N/A | N/A | 24.0 | |
| March 20, 2019, 8 a.m. | 7.0 ppb (6) | -0.5 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 33.0 ppb (25) | 0.18 ppb (2) | N/A | N/A | 25.0 | |
| March 20, 2019, 7 a.m. | 3.0 ppb (3) | -0.7 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 35.0 ppb (27) | 0.16 ppb (2) | N/A | N/A | 27.0 | |
| March 20, 2019, 6 a.m. | 4.1 ppb (4) | -0.5 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 35.0 ppb (27) | 0.18 ppb (2) | N/A | N/A | 27.0 | |
| March 20, 2019, 5 a.m. | 5.8 ppb (5) | -0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 33.0 ppb (25) | 0.2 ppb (2) | N/A | N/A | 25.0 | |
| March 20, 2019, 4 a.m. | 8.1 ppb (8) | 0.4 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 31.0 ppb (24) | 0.23 ppb (3) | N/A | N/A | 24.0 | |
| March 20, 2019, 3 a.m. | 12.4 ppb (11) | 0.7 ppb (1) | N/A | 12.0 ppb (11) | N/A | N/A | 28.0 ppb (22) | 0.25 ppb (3) | N/A | N/A | 22.0 | |
| March 20, 2019, 2 a.m. | 10.3 ppb (10) | 0.9 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 32.0 ppb (25) | 0.26 ppb (3) | N/A | N/A | 25.0 | |
| March 20, 2019, 1 a.m. | 9.5 ppb (9) | 0.6 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 34.0 ppb (26) | 0.24 ppb (3) | N/A | N/A | 26.0 | |
| March 20, 2019, midnight | 10.1 ppb (9) | 0.6 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | 41.0 ppb (32) | 0.26 ppb (3) | N/A | N/A | 32.0 | |
| March 19, 2019, 11 p.m. | 11.8 ppb (11) | 1.8 ppb (2) | N/A | 10.0 ppb (9) | N/A | N/A | 45.0 ppb (35) | 0.26 ppb (3) | N/A | N/A | 35.0 | |
| March 19, 2019, 10 p.m. | 8.4 ppb (8) | 0.7 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | 46.0 ppb (35) | 0.24 ppb (3) | N/A | N/A | 35.0 | |
| March 19, 2019, 9 p.m. | 10.5 ppb (10) | 1.2 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 46.0 ppb (35) | 0.26 ppb (3) | N/A | N/A | 35.0 | |
| March 19, 2019, 8 p.m. | 12.8 ppb (12) | 1.7 ppb (2) | N/A | 11.0 ppb (10) | N/A | N/A | 46.0 ppb (35) | 0.32 ppb (4) | N/A | N/A | 35.0 | |
| March 19, 2019, 7 p.m. | 19.0 ppb (18) | 3.4 ppb (3) | N/A | 16.0 ppb (15) | N/A | N/A | 42.0 ppb (32) | 0.35 ppb (4) | N/A | N/A | 32.0 | |
| March 19, 2019, 6 p.m. | 27.5 ppb (25) | 5.8 ppb (5) | N/A | 22.0 ppb (20) | N/A | N/A | 37.0 ppb (28) | 0.32 ppb (4) | N/A | N/A | 28.0 | |
| March 19, 2019, 5 p.m. | 35.1 ppb (32) | 8.3 ppb (8) | N/A | 27.0 ppb (25) | N/A | N/A | 32.0 ppb (25) | 0.39 ppb (4) | N/A | N/A | 32.0 | |
| March 19, 2019, 4 p.m. | 68.2 ppb (65) | 30.9 ppb (29) | N/A | 37.0 ppb (34) | N/A | N/A | 19.0 ppb (15) | 0.58 ppb (6) | N/A | N/A | 65.0 | |
| March 19, 2019, 3 p.m. | 114.4 ppb (103) | 69.2 ppb (66) | N/A | 45.0 ppb (42) | N/A | N/A | 5.0 ppb (4) | 0.93 ppb (10) | N/A | N/A | 103.0 | |
| March 19, 2019, 2 p.m. | 73.6 ppb (71) | 37.6 ppb (35) | N/A | 36.0 ppb (33) | N/A | N/A | 3.0 ppb (2) | 0.71 ppb (8) | N/A | N/A | 71.0 | |
| March 19, 2019, 1 p.m. | 78.4 ppb (76) | 40.5 ppb (38) | N/A | 38.0 ppb (35) | N/A | N/A | 2.0 ppb (2) | 0.74 ppb (8) | N/A | N/A | 76.0 | |
| March 19, 2019, noon | 57.8 ppb (54) | 22.2 ppb (21) | N/A | 36.0 ppb (33) | N/A | N/A | 2.0 ppb (2) | 0.58 ppb (6) | N/A | N/A | 54.0 | |
| March 19, 2019, 11 a.m. | 42.3 ppb (39) | 8.7 ppb (8) | N/A | 34.0 ppb (31) | N/A | N/A | 4.0 ppb (3) | 0.43 ppb (5) | N/A | N/A | 39.0 | |
| March 19, 2019, 10 a.m. | 53.6 ppb (50) | 15.5 ppb (14) | N/A | 38.0 ppb (35) | N/A | N/A | 2.0 ppb (2) | 0.53 ppb (6) | N/A | N/A | 50.0 | |
| March 19, 2019, 9 a.m. | 32.6 ppb (30) | 1.2 ppb (1) | N/A | 31.0 ppb (29) | N/A | N/A | 7.0 ppb (5) | 0.43 ppb (5) | N/A | N/A | 30.0 | |
| March 19, 2019, 8 a.m. | 26.9 ppb (25) | 1.3 ppb (1) | N/A | 26.0 ppb (24) | N/A | N/A | 9.0 ppb (7) | 0.43 ppb (5) | N/A | N/A | 25.0 | |
| March 19, 2019, 7 a.m. | 30.7 ppb (28) | 1.0 ppb (1) | N/A | 30.0 ppb (28) | N/A | N/A | 12.0 ppb (9) | 0.48 ppb (5) | N/A | N/A | 28.0 | |
| March 19, 2019, 6 a.m. | 37.5 ppb (35) | 2.5 ppb (2) | N/A | 35.0 ppb (32) | N/A | N/A | 15.0 ppb (12) | 0.42 ppb (5) | N/A | N/A | 35.0 | |
| March 19, 2019, 5 a.m. | 25.4 ppb (24) | 1.0 ppb (1) | N/A | 24.0 ppb (22) | N/A | N/A | 27.0 ppb (21) | 0.36 ppb (4) | N/A | N/A | 24.0 | |
| March 19, 2019, 4 a.m. | 19.6 ppb (18) | 0.5 ppb (0) | N/A | 19.0 ppb (18) | N/A | N/A | 29.0 ppb (22) | 0.35 ppb (4) | N/A | N/A | 22.0 | |
| March 19, 2019, 3 a.m. | 18.8 ppb (17) | 0.4 ppb (0) | N/A | 18.0 ppb (17) | N/A | N/A | 32.0 ppb (25) | 0.34 ppb (4) | N/A | N/A | 25.0 | |
| March 19, 2019, 2 a.m. | 17.7 ppb (16) | 0.4 ppb (0) | N/A | 17.0 ppb (16) | N/A | N/A | 37.0 ppb (28) | 0.33 ppb (4) | N/A | N/A | 28.0 | |
| March 19, 2019, 1 a.m. | 12.1 ppb (11) | 0.4 ppb (0) | N/A | 12.0 ppb (11) | N/A | N/A | 46.0 ppb (35) | 0.26 ppb (3) | N/A | N/A | 35.0 | |
| March 19, 2019, midnight | 12.3 ppb (11) | 0.7 ppb (1) | N/A | 12.0 ppb (11) | N/A | N/A | 50.0 ppb (38) | 0.26 ppb (3) | N/A | N/A | 38.0 | |
| March 18, 2019, 11 p.m. | 10.3 ppb (10) | 1.0 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 54.0 ppb (42) | 0.25 ppb (3) | N/A | N/A | 42.0 | |
| March 18, 2019, 10 p.m. | 10.3 ppb (10) | 0.6 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | 59.0 ppb (45) | 0.3 ppb (3) | N/A | N/A | 45.0 | |
| March 18, 2019, 9 p.m. | 20.0 ppb (19) | 2.6 ppb (2) | N/A | 17.0 ppb (16) | N/A | N/A | 50.0 ppb (38) | 0.41 ppb (5) | N/A | N/A | 38.0 | |
| March 18, 2019, 8 p.m. | 16.0 ppb (15) | 2.7 ppb (3) | N/A | 13.0 ppb (12) | N/A | N/A | 43.0 ppb (33) | 0.31 ppb (3) | N/A | N/A | 33.0 | |
| March 18, 2019, 7 p.m. | 18.0 ppb (17) | 3.8 ppb (4) | N/A | 14.0 ppb (13) | N/A | N/A | 42.0 ppb (32) | 0.27 ppb (3) | N/A | N/A | 32.0 | |
| March 18, 2019, 6 p.m. | 25.2 ppb (23) | 6.3 ppb (6) | N/A | 19.0 ppb (18) | N/A | N/A | 34.0 ppb (26) | 0.3 ppb (3) | N/A | N/A | 26.0 | |
| March 18, 2019, 5 p.m. | 45.7 ppb (42) | 15.7 ppb (15) | N/A | 30.0 ppb (28) | N/A | N/A | 23.0 ppb (18) | 0.39 ppb (4) | N/A | N/A | 42.0 | |
| March 18, 2019, 4 p.m. | 102.2 ppb (100) | 56.4 ppb (53) | N/A | 46.0 ppb (43) | N/A | N/A | 11.0 ppb (8) | 0.74 ppb (8) | N/A | N/A | 100.0 | |
| March 18, 2019, 3 p.m. | 118.1 ppb (103) | 72.9 ppb (70) | N/A | 45.0 ppb (42) | N/A | N/A | 6.0 ppb (5) | 0.93 ppb (10) | N/A | N/A | 103.0 | |
| March 18, 2019, 2 p.m. | 102.8 ppb (100) | 65.0 ppb (62) | N/A | 38.0 ppb (35) | N/A | N/A | 3.0 ppb (2) | 1.08 ppb (12) | N/A | N/A | 100.0 | |
| March 18, 2019, 1 p.m. | 75.2 ppb (73) | 41.1 ppb (38) | N/A | 34.0 ppb (31) | N/A | N/A | 2.0 ppb (2) | 0.87 ppb (10) | N/A | N/A | 73.0 | |
| March 18, 2019, noon | 46.8 ppb (43) | 15.3 ppb (14) | N/A | 31.0 ppb (29) | N/A | N/A | 3.0 ppb (2) | 0.59 ppb (7) | N/A | N/A | 43.0 | |
| March 18, 2019, 11 a.m. | 28.5 ppb (26) | 1.6 ppb (1) | N/A | 27.0 ppb (25) | N/A | N/A | 9.0 ppb (7) | 0.46 ppb (5) | N/A | N/A | 26.0 | |
| March 18, 2019, 10 a.m. | 27.4 ppb (25) | 1.2 ppb (1) | N/A | 26.0 ppb (24) | N/A | N/A | 11.0 ppb (8) | 0.45 ppb (5) | N/A | N/A | 25.0 | |
| March 18, 2019, 9 a.m. | 31.9 ppb (30) | 1.0 ppb (1) | N/A | 31.0 ppb (29) | N/A | N/A | 11.0 ppb (8) | 0.52 ppb (6) | N/A | N/A | 30.0 | |
| March 18, 2019, 8 a.m. | 33.2 ppb (31) | 1.8 ppb (2) | N/A | 31.0 ppb (29) | N/A | N/A | 9.0 ppb (7) | 0.54 ppb (6) | N/A | N/A | 31.0 | |
| March 18, 2019, 7 a.m. | 44.6 ppb (41) | 5.6 ppb (5) | N/A | 39.0 ppb (36) | N/A | N/A | 5.0 ppb (4) | 0.67 ppb (7) | N/A | N/A | 41.0 | |
| March 18, 2019, 6 a.m. | 36.3 ppb (34) | 2.2 ppb (2) | N/A | 34.0 ppb (31) | N/A | N/A | 9.0 ppb (7) | 0.65 ppb (7) | N/A | N/A | 34.0 | |
| March 18, 2019, 5 a.m. | 34.9 ppb (32) | 1.2 ppb (1) | N/A | 34.0 ppb (31) | N/A | N/A | 13.0 ppb (10) | 0.67 ppb (7) | N/A | N/A | 32.0 | |
| March 18, 2019, 4 a.m. | 32.8 ppb (30) | 1.3 ppb (1) | N/A | 31.0 ppb (29) | N/A | N/A | 18.0 ppb (14) | 0.7 ppb (8) | N/A | N/A | 30.0 | |
| March 18, 2019, 3 a.m. | 25.5 ppb (24) | 1.0 ppb (1) | N/A | 24.0 ppb (22) | N/A | N/A | 28.0 ppb (22) | 0.46 ppb (5) | N/A | N/A | 24.0 | |
| March 18, 2019, 2 a.m. | 20.3 ppb (19) | 1.9 ppb (2) | N/A | 18.0 ppb (17) | N/A | N/A | 37.0 ppb (28) | 0.37 ppb (4) | N/A | N/A | 28.0 | |
| March 18, 2019, 1 a.m. | 11.7 ppb (11) | -0.1 ppb (0) | N/A | 12.0 ppb (11) | N/A | N/A | 50.0 ppb (38) | 0.34 ppb (4) | N/A | N/A | 38.0 | |
| March 18, 2019, midnight | 8.2 ppb (8) | 0.4 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 49.0 ppb (38) | 0.23 ppb (3) | N/A | N/A | 38.0 | |
| March 17, 2019, 11 p.m. | 3.5 ppb (3) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 49.0 ppb (38) | 0.18 ppb (2) | N/A | N/A | 38.0 | |
| March 17, 2019, 10 p.m. | 4.2 ppb (4) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 49.0 ppb (38) | 0.19 ppb (2) | N/A | N/A | 38.0 | |
| March 17, 2019, 9 p.m. | 4.9 ppb (5) | 0.3 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 48.0 ppb (37) | 0.19 ppb (2) | N/A | N/A | 37.0 | |
| March 17, 2019, 8 p.m. | 4.4 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 47.0 ppb (36) | 0.19 ppb (2) | N/A | N/A | 36.0 | |
| March 17, 2019, 7 p.m. | 10.5 ppb (10) | 1.9 ppb (2) | N/A | 9.0 ppb (8) | N/A | N/A | 42.0 ppb (32) | 0.24 ppb (3) | N/A | N/A | 32.0 | |
| March 17, 2019, 6 p.m. | 15.7 ppb (15) | 3.6 ppb (3) | N/A | 12.0 ppb (11) | N/A | N/A | 34.0 ppb (26) | 0.29 ppb (3) | N/A | N/A | 26.0 | |
| March 17, 2019, 5 p.m. | 18.2 ppb (17) | 4.1 ppb (4) | N/A | 14.0 ppb (13) | N/A | N/A | 31.0 ppb (24) | 0.31 ppb (3) | N/A | N/A | 24.0 | |
| March 17, 2019, 4 p.m. | 27.7 ppb (26) | 8.0 ppb (7) | N/A | 20.0 ppb (19) | N/A | N/A | 24.0 ppb (18) | 0.38 ppb (4) | N/A | N/A | 26.0 | |
| March 17, 2019, 3 p.m. | 49.1 ppb (45) | 20.3 ppb (19) | N/A | 29.0 ppb (27) | N/A | N/A | 12.0 ppb (9) | 0.56 ppb (6) | N/A | N/A | 45.0 | |
| March 17, 2019, 2 p.m. | 42.5 ppb (39) | 13.9 ppb (13) | N/A | 29.0 ppb (27) | N/A | N/A | 5.0 ppb (4) | 0.5 ppb (6) | N/A | N/A | 39.0 | |
| March 17, 2019, 1 p.m. | 30.7 ppb (28) | 3.2 ppb (3) | N/A | 28.0 ppb (26) | N/A | N/A | 5.0 ppb (4) | 0.44 ppb (5) | N/A | N/A | 28.0 | |
| March 17, 2019, noon | 30.7 ppb (28) | 2.7 ppb (3) | N/A | 28.0 ppb (26) | N/A | N/A | 6.0 ppb (5) | 0.42 ppb (5) | N/A | N/A | 28.0 | |
| March 17, 2019, 11 a.m. | 20.7 ppb (19) | 0.8 ppb (1) | N/A | 20.0 ppb (19) | N/A | N/A | 12.0 ppb (9) | 0.33 ppb (4) | N/A | N/A | 19.0 | |
| March 17, 2019, 10 a.m. | 18.7 ppb (17) | 0.3 ppb (0) | N/A | 18.0 ppb (17) | N/A | N/A | 16.0 ppb (12) | 0.33 ppb (4) | N/A | N/A | 17.0 | |
| March 17, 2019, 9 a.m. | 22.1 ppb (20) | 0.8 ppb (1) | N/A | 21.0 ppb (19) | N/A | N/A | 14.0 ppb (11) | 0.4 ppb (4) | N/A | N/A | 20.0 | |
| March 17, 2019, 8 a.m. | 24.6 ppb (23) | 0.7 ppb (1) | N/A | 24.0 ppb (22) | N/A | N/A | 12.0 ppb (9) | 0.43 ppb (5) | N/A | N/A | 23.0 | |
| March 17, 2019, 7 a.m. | 28.0 ppb (26) | 1.3 ppb (1) | N/A | 27.0 ppb (25) | N/A | N/A | 13.0 ppb (10) | 0.47 ppb (5) | N/A | N/A | 26.0 | |
| March 17, 2019, 6 a.m. | 36.7 ppb (34) | 4.4 ppb (4) | N/A | 32.0 ppb (30) | N/A | N/A | 9.0 ppb (7) | 0.6 ppb (7) | N/A | N/A | 34.0 | |
| March 17, 2019, 5 a.m. | 34.2 ppb (32) | 1.8 ppb (2) | N/A | 32.0 ppb (30) | N/A | N/A | 14.0 ppb (11) | 0.56 ppb (6) | N/A | N/A | 32.0 | |
| March 17, 2019, 4 a.m. | 40.7 ppb (38) | 4.3 ppb (4) | N/A | 36.0 ppb (33) | N/A | N/A | 15.0 ppb (12) | 0.62 ppb (7) | N/A | N/A | 38.0 | |
| March 17, 2019, 3 a.m. | 29.8 ppb (28) | 2.2 ppb (2) | N/A | 28.0 ppb (26) | N/A | N/A | 25.0 ppb (19) | 0.51 ppb (6) | N/A | N/A | 28.0 | |
| March 17, 2019, 2 a.m. | 18.8 ppb (17) | 2.3 ppb (2) | N/A | 16.0 ppb (15) | N/A | N/A | 34.0 ppb (26) | 0.31 ppb (3) | N/A | N/A | 26.0 | |
| March 17, 2019, 1 a.m. | 3.1 ppb (3) | -0.8 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 45.0 ppb (35) | 0.17 ppb (2) | N/A | N/A | 35.0 | |
| March 17, 2019, midnight | 2.6 ppb (2) | -0.5 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 47.0 ppb (36) | 0.16 ppb (2) | N/A | N/A | 36.0 | |
| March 16, 2019, 11 p.m. | 1.8 ppb (2) | -0.7 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 49.0 ppb (38) | 0.15 ppb (2) | N/A | N/A | 38.0 | |
| March 16, 2019, 10 p.m. | 1.8 ppb (2) | -0.7 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 49.0 ppb (38) | 0.15 ppb (2) | N/A | N/A | 38.0 | |
| March 16, 2019, 9 p.m. | 1.3 ppb (1) | -0.6 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | 50.0 ppb (38) | 0.14 ppb (2) | N/A | N/A | 38.0 | |
| March 16, 2019, 8 p.m. | 1.2 ppb (1) | -0.8 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | 49.0 ppb (38) | 0.14 ppb (2) | N/A | N/A | 38.0 | |
| March 16, 2019, 7 p.m. | 1.2 ppb (1) | -0.7 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | 49.0 ppb (38) | 0.14 ppb (2) | N/A | N/A | 38.0 | |
| March 16, 2019, 6 p.m. | 8.4 ppb (8) | 2.4 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | 45.0 ppb (35) | 0.25 ppb (3) | N/A | N/A | 35.0 | |
| March 16, 2019, 5 p.m. | 14.8 ppb (14) | 3.6 ppb (3) | N/A | 11.0 ppb (10) | N/A | N/A | 37.0 ppb (28) | 0.29 ppb (3) | N/A | N/A | 28.0 | |
| March 16, 2019, 4 p.m. | 26.5 ppb (25) | 7.6 ppb (7) | N/A | 19.0 ppb (18) | N/A | N/A | 28.0 ppb (22) | 0.4 ppb (4) | N/A | N/A | 25.0 | |
| March 16, 2019, 3 p.m. | 53.3 ppb (49) | 21.5 ppb (20) | N/A | 32.0 ppb (30) | N/A | N/A | 15.0 ppb (12) | 0.68 ppb (8) | N/A | N/A | 49.0 | |
| March 16, 2019, 2 p.m. | 62.4 ppb (59) | 24.8 ppb (23) | N/A | 38.0 ppb (35) | N/A | N/A | 6.0 ppb (5) | 0.71 ppb (8) | N/A | N/A | 59.0 | |
| March 16, 2019, 1 p.m. | 49.4 ppb (46) | 12.3 ppb (11) | N/A | 37.0 ppb (34) | N/A | N/A | 3.0 ppb (2) | 0.53 ppb (6) | N/A | N/A | 46.0 | |
| March 16, 2019, noon | 42.5 ppb (39) | 5.7 ppb (5) | N/A | 37.0 ppb (34) | N/A | N/A | 4.0 ppb (3) | 0.39 ppb (4) | N/A | N/A | 39.0 | |
| March 16, 2019, 11 a.m. | 35.0 ppb (32) | 3.2 ppb (3) | N/A | 32.0 ppb (30) | N/A | N/A | 8.0 ppb (6) | 0.39 ppb (4) | N/A | N/A | 32.0 | |
| March 16, 2019, 10 a.m. | 39.1 ppb (36) | 2.7 ppb (3) | N/A | 36.0 ppb (33) | N/A | N/A | 7.0 ppb (5) | 0.39 ppb (4) | N/A | N/A | 36.0 | |
| March 16, 2019, 9 a.m. | 33.8 ppb (31) | 2.2 ppb (2) | N/A | 32.0 ppb (30) | N/A | N/A | 11.0 ppb (8) | 0.44 ppb (5) | N/A | N/A | 31.0 | |
| March 16, 2019, 8 a.m. | 45.6 ppb (42) | 6.7 ppb (6) | N/A | 39.0 ppb (36) | N/A | N/A | 5.0 ppb (4) | 0.57 ppb (6) | N/A | N/A | 42.0 | |
| March 16, 2019, 7 a.m. | 56.8 ppb (53) | 15.3 ppb (14) | N/A | 41.0 ppb (38) | N/A | N/A | 3.0 ppb (2) | 0.62 ppb (7) | N/A | N/A | 53.0 | |
| March 16, 2019, 6 a.m. | 53.5 ppb (50) | 12.7 ppb (12) | N/A | 41.0 ppb (38) | N/A | N/A | 4.0 ppb (3) | 0.6 ppb (7) | N/A | N/A | 50.0 | |
| March 16, 2019, 5 a.m. | 65.2 ppb (62) | 21.0 ppb (19) | N/A | 44.0 ppb (41) | N/A | N/A | 3.0 ppb (2) | 0.75 ppb (8) | N/A | N/A | 62.0 | |
| March 16, 2019, 4 a.m. | 49.3 ppb (46) | 8.7 ppb (8) | N/A | 41.0 ppb (38) | N/A | N/A | 6.0 ppb (5) | 0.58 ppb (6) | N/A | N/A | 46.0 | |
| March 16, 2019, 3 a.m. | 33.7 ppb (31) | 4.7 ppb (4) | N/A | 29.0 ppb (27) | N/A | N/A | 16.0 ppb (12) | 0.44 ppb (5) | N/A | N/A | 31.0 | |
| March 16, 2019, 2 a.m. | 11.8 ppb (11) | -0.3 ppb (0) | N/A | 12.0 ppb (11) | N/A | N/A | 35.0 ppb (27) | 0.24 ppb (3) | N/A | N/A | 27.0 | |
| March 16, 2019, 1 a.m. | 5.4 ppb (5) | -0.5 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 43.0 ppb (33) | 0.19 ppb (2) | N/A | N/A | 33.0 | |
| March 16, 2019, midnight | 5.5 ppb (5) | 0.3 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 43.0 ppb (33) | 0.22 ppb (2) | N/A | N/A | 33.0 | |
| March 15, 2019, 11 p.m. | 4.1 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 44.0 ppb (34) | 0.19 ppb (2) | N/A | N/A | 34.0 | |
| March 15, 2019, 10 p.m. | 1.3 ppb (1) | -0.7 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (35) | 0.15 ppb (2) | N/A | N/A | 35.0 | |
| March 15, 2019, 9 p.m. | 8.0 ppb (7) | 1.4 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 45.0 ppb (35) | 0.19 ppb (2) | N/A | N/A | 35.0 | |
| March 15, 2019, 8 p.m. | 8.5 ppb (8) | 1.7 ppb (2) | N/A | 7.0 ppb (6) | N/A | N/A | 44.0 ppb (34) | 0.2 ppb (2) | N/A | N/A | 34.0 | |
| March 15, 2019, 7 p.m. | 7.4 ppb (7) | 1.3 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 43.0 ppb (33) | 0.21 ppb (2) | N/A | N/A | 33.0 | |
| March 15, 2019, 6 p.m. | 10.8 ppb (10) | 2.7 ppb (3) | N/A | 8.0 ppb (7) | N/A | N/A | 39.0 ppb (30) | 0.24 ppb (3) | N/A | N/A | 30.0 | |
| March 15, 2019, 5 p.m. | 15.5 ppb (14) | 4.1 ppb (4) | N/A | 11.0 ppb (10) | N/A | N/A | 36.0 ppb (28) | 0.23 ppb (3) | N/A | N/A | 28.0 |